I am new to iPhone. I have a small doubt that is I am created one project in that I am place one button when I click on that it opens UIWebView in that UIView i want a navigation bar with back button how it is possible.for this,I have written some code but here i am not able to create back button.If any body know this please help me...
The below code I have written for this
BiblePlayerViewController.m
- (IBAction)aboutUsButtonClicked:(id)sender {
UIWebView *aboutUsWebView = [[UIWebView alloc]initWithFrame:CGRectMake(0,44, 320, 460)];
[self.view addSubview:aboutUsWebView];
[aboutUsWebView setOpaque:NO];
aboutUsWebView.backgroundColor = [UIColor whiteColor];
aboutUsWebView.delegate = self;
[aboutUsWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.ayansys.com/"]]];
biblePlayerController = [[BiblePlayerViewController alloc]initWithNibName:#"BiblePlayerViewController" bundle:nil];
navigationController = [[UINavigationController alloc]init];
navigationController.view.frame = CGRectMake(0, 0, 320, 44);
[self.view addSubview:navigationController.view];
self.navigationController.navigationBar.tintColor=[UIColor orangeColor];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStylePlain target:self action:#selector(GotoBiblePlayerViewController)];
self.navigationItem.leftBarButtonItem = backButton;
}
[self.navigationController setNavigationBarHidden:NO animated:YES];
put this in either your viewDidAppear, viewDidLoad or viewWillAppear.
or this:
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStyleDone target:nil action:nil];
self.navigationItem.backBarButtonItem = backButton;
Related
I have tried to add a UIBarButtonItem to my UINavigation bar but I can't get it to show up:
- (void)viewDidLoad {
[super viewDidLoad];
self.webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 50, self.view.frame.size.width,self.view.frame.size.height)];
[self.view addSubview:self.webView];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]
initWithTitle:NSLocalizedString(#"Back", #"")
style:UIBarButtonItemStyleDone
target:self
action:#selector(remove:)];
[self.navigationItem setLeftBarButtonItem: backButton];
UINavigationBar *myBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:myBar];
self.webView.delegate = self;
NSURLRequest *request = [NSURLRequest requestWithURL:self.url];
[self.webView loadRequest:request];
}
- (void)remove:(id)sender
{
[self removeFromParentViewController];
[self.webView stopLoading];
self.webView.delegate = nil;
}
I can't figure out why the button isn't there. Any help would be much appreciated!
Thanks.
Before add UIBarButtonItem to UINavigationBar, First change your UIWebView frame,
self.webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 50, self.view.frame.size.width,self.view.frame.size.height - 50 )];
Here add (-50) to height of UIWebView.
And now, i just write code for how to add UIBarButtonItem to UINavigationBar:
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:navBar];
UIBarButtonItem *Button = [[UIBarButtonItem alloc]
initWithTitle:#"MyButton"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(buttonAction)];
UINavigationItem *item = [[UINavigationItem alloc] initWithTitle:#"This is My Title "];
item.rightBarButtonItem = Button;
item.hidesBackButton = YES;
[navBar pushNavigationItem:item animated:NO];
Here is Method name is buttonActionthat execute/call when you tapped on UIBarButtonItem.
-(void)buttonAction
{
//stuff of code;
}
remove these two lines from your code and check it,
UINavigationBar *myBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:myBar];
or you can add like this,
UINavigationBar *myBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:myBar];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]
initWithTitle:#"remove"
style:UIBarButtonItemStyleDone
target:self
action:#selector(remove:)];
UINavigationItem *item = [[UINavigationItem alloc]initWithTitle:#"remove"];
[item setLeftBarButtonItem:backButton];
[myBar setItems:[NSArray arrayWithObject:item]];
Richard, I understand what you want to achieve but I am not sure whether you are using a navigation controller already.
Case 1: using UINavigationController
If you are using Navigation Controller already then you don't need to add new Navigation bar.
If you are using NavigationController then show the use the bar from Navigation Controller and your code will work.
below two lines would not be required.
UINavigationBar *myBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:myBar];
Case 2: Not using UINavigationController
If you are not using UINavigationController then you are required to add a Bar and add Bar button in the navigation item of Bar.
UINavigationBar *myBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[self.view addSubview:myBar];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]
initWithTitle:#"remove"
style:UIBarButtonItemStyleDone
target:self
action:#selector(remove:)];
UINavigationItem *item = [[UINavigationItem alloc]initWithTitle:#"remove"];
[item setLeftBarButtonItem:backButton];
[myBar setItems:[NSArray arrayWithObject:item]];
and you need to remove following line
[self.navigationItem setLeftBarButtonItem:backButton];
It will work perfectly. Let me know if you find any issues.
I want to add two buttons with custom image to Navigation Bar with some specific position.
I found solution But it is for Right/Left Navigation Bar Button.
My code for that is:
NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:2];
UIToolbar *tools = [[UIToolbar alloc]
initWithFrame:CGRectMake(0.0f, 0.0f, 90.0f, 55.01f)];
// Add Pin button.
UIBarButtonItem *bi1 = [[UIBarButtonItem alloc] initWithTitle:#"Edit" style:UIBarButtonItemStylePlain target:self action:#selector(Edit:)];
bi1.style = UIBarButtonItemStyleBordered;
bi1.width = 45;
[buttons addObject:bi1];
[bi1 release];
// Add Hot Spot button.
UIBarButtonItem *bi2 = [[UIBarButtonItem alloc] initWithTitle:#"+" style:UIBarButtonItemStylePlain target:self action:#selector(Add:)];
bi2.style = UIBarButtonItemStyleBordered;
[buttons addObject:bi2];
[bi2 release];
// Add buttons to toolbar and toolbar to nav bar.
[tools setItems:buttons animated:NO];
[buttons release];
// Add toolbar to nav bar.
UIBarButtonItem *twoButtons = [[UIBarButtonItem alloc] initWithCustomView:tools];
[tools release];
self.navigationItem.rightBarButtonItem = twoButtons;
[twoButtons release];
How can i do this?
UIView *vieww =[[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
[vieww addSubview:yourBtn1];
[vieww addSubview:yourBtn2];
[self.navigationController.navigationBar addSubview:vieww];
And if you want to remove yourButtonView then make is global object;
in .h
UIView *vieww;
and in .m
-(void)viewWillDisappear:(BOOL)animated
{
[vieww removeFromSuperview];
}
Or follow this for more Link
if you are using >iOS 5, then use this.
UIBarButtonItem *btn1=[[UIBarButtonItem alloc] initWithTitle:#" + " style:UIBarButtonItemStyleDone target:self action:#selector(action1:)];
UIBarButtonItem *btn2=[[UIBarButtonItem alloc] initWithTitle:#" - " style:UIBarButtonItemStyleDone target:self action:#selector(action2:) ];
self.navigationItem.rightBarButtonItems=[NSArray arrayWithObjects:btn1,btn2,nil];
for < iOS 5 u can use following:
UIToolbar* tools = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 160, 44.01)];
tools.barStyle = UIBarStyleBlackOpaque;
// create the array to hold the buttons, which then gets added to the toolbar
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:4];
[buttons addObject:btn1];
[buttons addObject:btn2];
[tools setItems:buttons animated:NO];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:tools];
Instead of adding toolbar, you can create one UIView, add two buttons on that view.
UIBarButtonItem *twoButtons = [[UIBarButtonItem alloc] initWithCustomView:yourView];
If you want to do this in combination with using a storyboard, take a look at this question.
hii every one
i am creating a navigation based application & i am designing screens programatically , i need to have 2 bar buttons ie left barbutton item & right bar button item so i have used following code in - (void)loadView method but its crashing when controller enters loadview method,,can any one tell me whats wrong in this code, thanx in advance
self.title = #"Add Item";
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
target:self action:#selector(cancel_Clicked:)] autorelease];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemSave
target:self action:#selector(save_Clicked:)] autorelease];
self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
Try this code
UIBarButtonItem *flipButton = [[UIBarButtonItem alloc]
initWithTitle:#"Flip"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(flipView)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];
Try following code,
UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
[btn addTarget:self action:#selector(yourfunctionToCall:) forControlEvents:UIControlEventTouchUpInside];
btn.frame=CGRectMake(3, 2, 53, 30);
UIBarButtonItem *btnBack=[[UIBarButtonItem alloc] initWithCustomView:btn];
self.navigationItem.leftBarButtonItem=btnBack;
[btnBack release];
[btn release];
same way create for rightBarButtonItem
self.title = #"Add Item";
UIBarButtonItem *cancelbutton = [[[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
target:self action:#selector(cancel_Clicked:)] autorelease];
self.navigationItem.leftBarButtonItem=cancelbutton;
[cancelbutton release];
UIBarButtonItem *savebutton = [[[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemSave
target:self action:#selector(save_Clicked:)] autorelease];
self.navigationItem.rightBarButtonItem=savebutton;
[savebutton release];
A simple question. How do I add toolbar items in combination with a TTLauncherViewController. I must do something very basic wrong, as the toolbar appears, but the button does not show:
self.navigationController.toolbarHidden = NO;
self.navigationController.toolbar.tintColor = [UIColor blackColor];
UIBarButtonItem *updateBttn = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
target:self
action:#selector(updateData:)];
UIBarButtonItem *btnSpacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil ];
self.navigationController.toolbarItems = [NSArray arrayWithObjects:updateBttn, btnSpacer, nil];
[btnSpacer release];
[updateBttn release];
Could this be the issue?
http://www.iphonedevsdk.com/forum/iphone-sdk-development/22180-navigationcontroller-toolbar-wont-show-any-buttons.html
In short, it says that the toolbar is not a child of the navigation controller but the parent view.
I've searched around and I can't seem to figure it out. I'm sure many people will have links for me and such, which I've most likely already looked at. But if someone could please just show me code to do the following:
I'd like to have a left arrow in my UINavigationBar as a "Back" UINavigationItem. How can I do this? Here is my current code in my UIViewController:
theBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 48.0f)];
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStyleBordered target:nil action:#selector(backButtonSelected:)];
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithTitle:#"Options" style:UIBarButtonItemStyleBordered target:nil action:#selector(optionsButtonSelected:)];
UINavigationItem *item = [[UINavigationItem alloc] initWithTitle:#"Title"];
item.leftBarButtonItem = leftButton;
item.hidesBackButton = YES;
item.rightBarButtonItem = rightButton;
[self.view addSubview:theBar];
I think this may be what you're looking for.
// in .h file
#property (nonatomic, retain) UINavigationBar *navBar;
// in .m file just below #implementation
#synthesize navBar;
// within .m method
navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 48.0f)];
navBar.barStyle = UIBarStyleBlack;
UINavigationItem *title = [[UINavigationItem alloc] initWithTitle:#"Nav Bar Title"];
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc]
initWithTitle:#"Back"
style:UIBarButtonItemStylePlain
target:nil
action:#selector(backButtonSelected:)];
title.leftBarButtonItem = leftButton;
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAction
target:nil
action:#selector(showActionSheet:)];
title.rightBarButtonItem = rightButton;
[navBar pushNavigationItem:title animated:YES];
[self.view addSubview:navBar];
You should use an UINavigationController in order to pop/push UIViewControllers on your screen. The navigation controller will add an UINavigationBar to your UIViewControllers automatically so you will not need to create them as you did.
Here is a sample. I didn't looked for memory leaks.
In the app delegate you'll find this method:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
MainVC *mainVC = [[MainVC alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:mainVC];
[self.window addSubview:navController.view];
[self.window makeKeyAndVisible];
return YES;
}
MainVC is a UIViewController that represents the level 1 of the hierarchy. in it i have
- (void)loadView
{
self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
self.view.backgroundColor = [UIColor redColor];
self.title = #"MainVC";
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] initWithTitle:#"SecondLevel" style:UIBarButtonItemStyleBordered target:self action:#selector(secondLevelSelected:)];
self.navigationItem.rightBarButtonItem = rightButton;
}
- (void) secondLevelSelected:(id)sender
{
SecondVC *secondVC = [[SecondVC alloc] init];
[self.navigationController pushViewController:secondVC animated:YES];
}
SecondVC is another UIViewController that represents the second level of the hierachy. Here you will find the back button that you want.
- (void)loadView
{
self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 240)];
self.view.backgroundColor = [UIColor greenColor];
self.title = #"SecondVC";
self.navigationItem.hidesBackButton = YES;
UIBarButtonItem *leftBtn = [[UIBarButtonItem alloc] initWithTitle:#"FirstLevel" style:UIBarButtonItemStyleBordered target:self action:#selector(leftBtnSelected:)];
self.navigationItem.leftBarButtonItem = leftBtn;
}
- (void) leftBtnSelected:(id)sender
{
[self.navigationController popViewControllerAnimated:YES];
}